Lead contamination and its potential risks due to seafood consumption from Sentani Lake, Papua, Indonesia 2013
This research aimed to investigate lead (Pb) contamination in aquatic habitat and assess the potential health risks of seafood consumption from Sentani Lake, Papua. Water column, sediment, bivalve, pelagic and benthic fishes samples were collected in one time collection. Furthermore, estimated weekly intake (EWI) and potential health risks were determined using target hazard quotient (THQ) equation. Results revealed the concentration of Pb in water column, sediment, bivalve, pelagic and benthic fishes were ranged from 0.13 to 1.87 mg L-1, 1.24 to 3.84 mg kg-1 dw, 0.43 to 2.76 mg kg-1ww, 0.27 to 2.78 mg kg-1ww and 1.39 to 3.55mg kg-1ww, respectively. The magnitude of EWI values of Pb in bivalve, pelagic and benthic fishes showed that consumption per week for body weight of 60 kg for the local people were found to be in the range of 0.49 to 3.16 mg/kg bw and 1.13 to 10.71 mg/kg bw and 5.84 to 11.93 mg/kg bw, respectively. In addition, the magnitude values of target THQ for water column, bivalve, pelagic and benthic fishes were in the range of 0.005 to 0.035, 0.006 to 0.038, 0.004 to 0.039 and 0.021 to 0.051, respectively. All those levels have not exceeded the limit standard or < 1 for potential health risks which mean safe for consumption.